Why did the Non-Cooperation Movement slow down in some urban areas?

Correct answer: Khadi was costly for many people

One limitation of the urban boycott was the high cost of khadi. Many ordinary people could not easily replace inexpensive or familiar mill-made and foreign cloth with costlier khadi, so sustained participation became difficult in some towns. This economic obstacle contributed to the slowing of the movement. Option A is therefore correct. The government had not granted swaraj, foreign cloth was not completely unavailable, and the claim about all lawyers is false.